10ga is 20mm - Arms Locker
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Old 12-10-2015, 07:16 AM   #1
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10ga is 20mm

20mm shells pack enough explosive to down jet planes. cut off .50 bmg cases where they start to bottleneck and they are a perfect fit for 10 ga. develope a 10 rd box mag and you'll have something (along with another idea already proven to work with 12 ga),
 
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Old 12-11-2015, 01:20 PM   #2
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I wonder if an adaptation of the VEPR/Catamount Fury/Saiga based shotguns is doable? Could a rifled barrel be made up to work with these cut down cases? Admittedly, they'd no longer be " shotguns", but THIS is an idea that interests me.
 
Old 12-12-2015, 11:11 AM   #3
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rifle a barrel of larger than .50 bore and you've got an NFA item. my interest is in having 3 ozs of "rifle" grenade, with a burst radius of 2m, 3-4 shots per second.
 
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